UC Riverside study of nearly 100 dairy farms shows systems designed to capture methane from manure are highly effective, ...

Add Yahoo as a preferred source to see more of our stories on Google. Methane is a powerful greenhouse gas that is over 80 times stronger than carbon dioxide when trapping heat over a 20-year period.

Winona City Manager Eric Sorensen speaks Tuesday during the dedication of the $1.1 million methane digester at the wastewater treatment plant. The system, which is expected to produce enough ...